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Finding the Fourth Proportional to 386,750.40, 533,813.60 and 264,292.32

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Solution

The fourth proportional to 386,750.40, 533,813.60 and 264,292.32 is: 364,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,750.40 : 533,813.60 = 264,292.32 : x
  2. Step 2: Convert to fraction form
    386,750.40/533,813.60 = 264,292.32/x
  3. Step 3: Cross multiply
    386,750.40x = 533,813.60 × 264,292.32
  4. Step 4: Simplify right side
    386,750.40x = 141,082,834,791.55
  5. Step 5: Solve for x
    x = 141,082,834,791.55/386,750.40
  6. Step 6: Final answer
    x = 364,790.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.